How can I force Simulink to use a set of data (time depended) as input?

Hi All,

I have a Simulink file which simulate the dynamics of a car. In particular, the model input are the steering wheel angle and the speed. The output is the lateral acceleration developed by the car. The sampling time of the model is 0.005 sec.

I have the input data logged every 0.005sec from the data acquisition system of a car in Excel format. The file contain 3 columns: time, steering wheel angle and speed

How can I force Simulink to process the file using time, steering wheel angle and speed from the Excel file?

Any help is more than appreciated

Thanks for your time

G

Answer 1

[Azzi Abdelmalek]

I don't think you can do it with xlsread function in 0.005 sec, plus the time of simulation which depends on the complexity of your model. But If you want to simulate after all data are imported, use

data=xlsread('yourfile.xlsx');
t=data(:,1);
angle=data(:,2);
speed=data(:,3);
ta=[t';angle'];
ts=[t';speed'];
save file1 ta
save file2 ts

Then use in simulink the from file block with respective names file1 and file2

Answer 2

[Rick Rosson]

Use the xlsread function to read the data into the MATLAB Workspace, then use the From Workspace block to bring the data into Simulink.